service mysqld start Starting mysqld (via systemctl): Job for mysqld.service failed because the con

linux启动mysql报错：service mysqld start
Starting mysqld (via systemctl):  Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
                                                           [FAILED]

查看mysql日志：systemctl status mysqld.service  字面意思是初始化错误，需要libaio.so.1，但是在之前我已经安装过libaio.so.1了。然后直接安装libaio,可能是有些组件之前没有安装到。

安装libaio,中途要输入y，回车，安装成功。启动mysql     OK